TW201615144A - Contact type ophthalmoscope - Google Patents

Contact type ophthalmoscope Download PDF

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Publication number
TW201615144A
TW201615144A TW103136830A TW103136830A TW201615144A TW 201615144 A TW201615144 A TW 201615144A TW 103136830 A TW103136830 A TW 103136830A TW 103136830 A TW103136830 A TW 103136830A TW 201615144 A TW201615144 A TW 201615144A
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contact
lens group
light
module
lens
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TW103136830A
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Chinese (zh)
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TWI631927B (en
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鄭竹明
廖龍盛
謝明憲
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晉弘科技股份有限公司
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Priority to TW103136830A priority Critical patent/TWI631927B/en
Priority to US14/680,625 priority patent/US9770166B2/en
Priority to CN201510534355.3A priority patent/CN105534473B/en
Publication of TW201615144A publication Critical patent/TW201615144A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
    • A61B3/1208—Multiple lens hand-held instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/14—Arrangements specially adapted for eye photography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/0016—Operational features thereof
    • A61B3/0041—Operational features thereof characterised by display arrangements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
    • A61B3/1225—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes using coherent radiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
    • A61B3/125—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes with contact lenses

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Eye Examination Apparatus (AREA)
  • Stroboscope Apparatuses (AREA)

Abstract

A contact-type ophthalmoscope includes a contact lens, an annular illumination module, an imaging lens group and an image capture module. The contact lens having a concave surface is configured for contacting an eye. The annular illumination module arranged close to the contact lens is configured for providing a direct illumination source to illuminate a fundus of the eye. The imaging lens group is disposed in the central hollow portion of the annular illumination module and configured for converging the reflected light from the fundus of the eye. The image capture module is configured for capturing the reflected light converged by the imaging lens group to form an image. The above-mentioned contact-type ophthalmoscope has advantages of better illumination efficiency, compact and less stray light reflected from the imaging lens, etc.

Description

接觸式眼底鏡Contact ophthalmoscope

本發明是有關一種眼底鏡，特別是一種接觸式眼底鏡。The present invention relates to an ophthalmoscope, and more particularly to a contact type ophthalmoscope.

眼底鏡是用來觀察眼球基底之檢視工具，例如用以觀察視網膜、視神經盤、血管分佈等是否異常。然而，受到瞳孔的限制，習知之非接觸式眼底鏡的可觀測範圍較小，一般而言，半視角僅約為20度。若欲增加可觀測範圍，成像系統以及照明系統皆需要特殊設計，例如加大透鏡或獨立之照明系統，如此將導致非接觸式眼底鏡之體積無法有效縮小。接觸式眼底鏡因貼近瞳孔進行觀測，因此，可獲得較大的可觀測範圍。The ophthalmoscope is a visual inspection tool used to observe the base of the eyeball, for example, to observe whether the retina, the optic disc, and the distribution of blood vessels are abnormal. However, due to the limitation of the pupil, the conventional non-contact ophthalmoscope has a small observable range, and generally, the half angle of view is only about 20 degrees. If you want to increase the observable range, the imaging system and the lighting system need special design, such as increasing the lens or independent lighting system, which will lead to the volume of the non-contact ophthalmoscope can not be effectively reduced. The contact-type ophthalmoscope is observed close to the pupil, so that a large observable range is obtained.

一種習知之接觸式眼底鏡是採用與成像系統同軸之照明系統。然而，此系統之透鏡中央的反射光難以避免而影響觀測。此外，此系統之透鏡尺寸正比於照明角度，因此，欲得到大範圍的照明，相對較大尺寸的透鏡難以避免。另一種習知之接觸式眼底鏡則是採用光纖導引照明光以提供較大範圍的照明。可以理解的是，光纖的出光角度較小，因此，此系統需佈置多個不同照明方向之光纖才能獲得較大範圍的照明，如此將導致結構複雜、組裝成本增加等問題。此外，光源與光纖之間的耦合亦影響光源的利用效率。One conventional contact ophthalmoscope is an illumination system that is coaxial with the imaging system. However, the reflected light in the center of the lens of this system is difficult to avoid and affects the observation. In addition, the lens size of this system is proportional to the illumination angle, so a relatively large size lens is difficult to avoid in order to obtain a wide range of illumination. Another conventional contact ophthalmoscope uses fiber-optic guided illumination to provide a wide range of illumination. It can be understood that the light exit angle of the optical fiber is small. Therefore, the system needs to arrange a plurality of optical fibers with different illumination directions to obtain a large range of illumination, which may cause problems such as complicated structure and increased assembly cost. In addition, the coupling between the light source and the optical fiber also affects the utilization efficiency of the light source.

有鑑於此，如何以簡單的結構即可提供較大範圍的眼底照明便是目前極需努力的目標。In view of this, how to provide a wide range of fundus illumination with a simple structure is currently an extremely demanding goal.

本發明提供一種接觸式眼底鏡，其是將偏離成像系統光軸之光源儘可能貼近瞳孔，如此，藉由直接照明即可提供較大之照明範圍。The present invention provides a contact type ophthalmoscope that places a light source that is offset from the optical axis of the imaging system as close as possible to the pupil so that a larger illumination range can be provided by direct illumination.

本發明一實施例之接觸式眼底鏡包含一接觸透鏡、一環形照明模組、一成像透鏡組以及一影像擷取模組。接觸透鏡具有一第一表面以及一相對之第二表面，其中第一表面為一凹面，用以接觸一眼球。環形照明模組貼近接觸透鏡之第二表面設置，並用以提供一直接照明光源通過眼球之一瞳孔以照射眼球之一基底。成像透鏡組設置於環形照明模組中央之一中空部，並用以會聚來自眼球之基底之一反射光。影像擷取模組用以擷取成像透鏡組所會聚之反射光以形成一影像。A contact type ophthalmoscope according to an embodiment of the invention comprises a contact lens, an annular illumination module, an imaging lens set and an image capture module. The contact lens has a first surface and an opposite second surface, wherein the first surface is a concave surface for contacting an eyeball. The annular lighting module is disposed adjacent to the second surface of the contact lens and is configured to provide a direct illumination source through one of the eyeballs to illuminate one of the bases of the eyeball. The imaging lens assembly is disposed in a hollow portion of the center of the annular illumination module and is configured to converge light reflected from one of the bases of the eyeball. The image capturing module is configured to capture the reflected light concentrated by the imaging lens group to form an image.

以下藉由具體實施例配合所附的圖式詳加說明，當更容易瞭解本發明之目的、技術內容、特點及其所達成之功效。The purpose, technical contents, features, and effects achieved by the present invention will become more apparent from the detailed description of the appended claims.

請參照圖1至圖3，本發明之一實施例之接觸式眼底鏡包含一接觸透鏡11、一環形照明模組12、一成像透鏡組13以及一影像擷取模組14。接觸透鏡11具有一第一表面111以及一相對之第二表面112。接觸透鏡11之第一表面111朝向眼球20，以接觸眼球20。可以理解的是，第一表面111可為一凹面以貼近眼球20之角膜。舉例而言，凹面的曲率約與角膜的曲率相等。於一實施例中，接觸透鏡11之材質可為一高分子聚合物材料。舉例而言，接觸透鏡11之材質可為一具有生物相容性之軟性高分子聚合物材料，較佳者，接觸透鏡11之材質同時可以是高含水之高分子聚合物材料，例如矽水膠、人工聚合物或天然樹脂等。Referring to FIG. 1 to FIG. 3 , a contact ophthalmoscope according to an embodiment of the present invention includes a contact lens 11 , an annular illumination module 12 , an imaging lens assembly 13 , and an image capture module 14 . The contact lens 11 has a first surface 111 and an opposite second surface 112. The first surface 111 of the contact lens 11 faces the eyeball 20 to contact the eyeball 20. It will be appreciated that the first surface 111 can be a concave surface to be in close proximity to the cornea of the eyeball 20. For example, the curvature of the concave surface is about equal to the curvature of the cornea. In an embodiment, the material of the contact lens 11 can be a high molecular polymer material. For example, the material of the contact lens 11 can be a biocompatible soft polymer material. Preferably, the material of the contact lens 11 can also be a high water-containing polymer material, such as hydrophobic glue. , artificial polymers or natural resins.

環形照明模組12貼近接觸透鏡11之第二表面112設置。環形照明模組12用以提供一直接照明光源通過眼球20之瞳孔以照射眼球20之基底。需注意者，直接照明光源是指光源所產生之全部或大部分之光線未經人為加工之表面反射即入射至眼球20之基底。於一實施例中，環形照明模組12可為多個呈環形對稱排列之發光元件121(例如發光二極體)或一環形發光元件(例如有機發光二極體)。於一實施例中，環形照明模組12可包含多個第一發光二極體121a以及多個第二發光二極體121b，其中多個第一發光二極體121a以及多個第二發光二極體121b分別呈環形對稱排列，且第一發光二極體121a以及第二發光二極體121b所產生之直接照明光源之中心波長相異。舉例而言，第一發光二極體121a用以提供可見光，例如白光，而第二發光二極體121b則用以提供紅外光，以提供不同的觀測用途。The annular lighting module 12 is disposed adjacent to the second surface 112 of the contact lens 11. The ring illumination module 12 is configured to provide a direct illumination source through the pupil of the eyeball 20 to illuminate the base of the eyeball 20. It should be noted that the direct illumination source means that all or most of the light generated by the light source is incident on the substrate of the eyeball 20 without being artificially processed. In one embodiment, the ring illumination module 12 can be a plurality of light-emitting elements 121 (eg, light-emitting diodes) or a ring-shaped light-emitting element (eg, an organic light-emitting diode) that are arranged in a circularly symmetric manner. In one embodiment, the ring-shaped illumination module 12 can include a plurality of first LEDs 121a and a plurality of second LEDs 121b, wherein the plurality of first LEDs 121a and the plurality of second LEDs The pole bodies 121b are respectively arranged in a ring symmetry, and the center wavelengths of the direct illumination light sources generated by the first light emitting diode 121a and the second light emitting diode 121b are different. For example, the first light-emitting diode 121a is used to provide visible light, such as white light, and the second light-emitting diode 121b is used to provide infrared light to provide different observation uses.

成像透鏡組13設置於環形照明模組12中央之一中空部122。成像透鏡組13用以會聚來自眼球20之基底之一反射光RL，並成像於影像擷取模組14。於一實施例中，成像透鏡組13包含一第一透鏡群組131、一第二透鏡群組132以及一第三透鏡群組133，其自眼球20側至影像擷取模組14側依序配置。第一透鏡群組131設置於環形照明模組12中央之一中空部122，並會聚眼球20基底之反射光，以在第一透鏡群組131以及第二透鏡群組132之間形成一中間像。於一實施例中，接觸透鏡11之第二表面112具有一凸面112a，其對應於成像透鏡組13之第一透鏡群組131。如此，接觸透鏡11亦可具有部分之成像功能。第二透鏡群組132用以解決大視角的畸變，舉例而言，第二透鏡群組132可為至少二個非球面透鏡。第三透鏡群組133用以消除色差，舉例而言，第三透鏡群組133可為至少二組雙膠合透鏡，或一組雙膠合透鏡以及一組三膠合透鏡。於一實施例中，第二透鏡群組132以及第三透鏡群組133至少其中之一是以可相對於第一透鏡群組131移動的方式配置，例如沿成像透鏡組之光軸OA移動或調整角度。影像擷取模組14則用以擷取成像透鏡組13所會聚之反射光RL以形成一影像。舉例而言，影像擷取模組14包含電荷耦合元件(Charge Coupled Device，CCD)、互補式金屬氧化物半導體(Complementary Metal Oxide Semiconductor，CMOS)感測器或底片。The imaging lens group 13 is disposed at one of the hollow portions 122 in the center of the annular lighting module 12. The imaging lens group 13 is configured to condense the reflected light RL from one of the bases of the eyeball 20 and image the same in the image capturing module 14. In one embodiment, the imaging lens group 13 includes a first lens group 131, a second lens group 132, and a third lens group 133, which are sequentially from the eyeball 20 side to the image capturing module 14 side. Configuration. The first lens group 131 is disposed at one of the hollow portions 122 in the center of the annular illumination module 12, and converges the reflected light of the base of the eyeball 20 to form an intermediate image between the first lens group 131 and the second lens group 132. . In an embodiment, the second surface 112 of the contact lens 11 has a convex surface 112a corresponding to the first lens group 131 of the imaging lens group 13. As such, the contact lens 11 can also have a partial imaging function. The second lens group 132 is for solving distortion of a large viewing angle. For example, the second lens group 132 may be at least two aspherical lenses. The third lens group 133 is for eliminating chromatic aberration. For example, the third lens group 133 may be at least two sets of double cemented lenses, or a set of double cemented lenses and a set of three cemented lenses. In one embodiment, at least one of the second lens group 132 and the third lens group 133 is configured to be movable relative to the first lens group 131, for example, along the optical axis OA of the imaging lens group or Adjust the angle. The image capturing module 14 is configured to capture the reflected light RL concentrated by the imaging lens group 13 to form an image. For example, the image capturing module 14 includes a Charge Coupled Device (CCD), a Complementary Metal Oxide Semiconductor (CMOS) sensor or a negative film.

依據上述結構，環形照明模組12儘可能地貼近眼球20之瞳孔，因此本發明之接觸式眼底鏡可提供較大角度之照明範圍，即眼球20之後半部，如圖1所示虛線之左側。可以理解的是，發光元件121往靠近成像透鏡組13之光軸OA的方向移動可提供較佳之照明效率，但卻會限制第一透鏡群組131之設置空間，進而影響成像品質。相反的，發光元件121往遠離成像透鏡組13之光軸OA的方向移動雖可設置較大尺寸之第一透鏡群組131，但卻無法提供均勻之照明。因此，於一較佳實施例中，環形照明模組12之中空部122的內徑D介於6mm至10mm。換言之，第一透鏡群組131之最大直徑即介於6mm至10mm。According to the above structure, the annular illumination module 12 is as close as possible to the pupil of the eyeball 20, so the contact type ophthalmoscope of the present invention can provide a larger angle illumination range, that is, the rear half of the eyeball 20, as shown by the dotted line on the left side of FIG. . It can be understood that the movement of the light-emitting element 121 in the direction close to the optical axis OA of the imaging lens group 13 can provide better illumination efficiency, but can limit the installation space of the first lens group 131, thereby affecting the imaging quality. Conversely, the movement of the light-emitting element 121 in a direction away from the optical axis OA of the imaging lens group 13 can provide a larger lens size of the first lens group 131, but does not provide uniform illumination. Therefore, in a preferred embodiment, the inner diameter D of the hollow portion 122 of the annular lighting module 12 is between 6 mm and 10 mm. In other words, the maximum diameter of the first lens group 131 is between 6 mm and 10 mm.

為了使發光元件121靠近光軸OA，發明元件121所採用之發光二極體可為簡易封裝結構，亦即封裝完成之發光二極體封裝件不包含具有偏折光線功能之二次光學結構。如此，簡易封裝之發光二極體封裝件之高度以寬度較小，而可以儘可能地靠近瞳孔以及光軸OA，且其出光的角度相對較大。於一實施例中，之接觸透鏡11之第二表面112具有一聚光結構112b，其對應於環形照明模組12之發光元件121。聚光結構112b可將較大角度之直接照明光源加以會聚而通過眼球20之瞳孔，進而提高照明效率。舉例而言，聚光結構112b可為一凸面。需注意者，聚光結構112b亦可與發光元件121整合在一起。換言之，發光元件121可為包含二次光學結構之發光二極體封裝件。In order to make the light-emitting element 121 close to the optical axis OA, the light-emitting diode used in the invention element 121 can be a simple package structure, that is, the packaged light-emitting diode package does not include a secondary optical structure having a function of deflecting light. In this way, the height of the light-emitting diode package of the simple package is small, and can be as close as possible to the pupil and the optical axis OA, and the angle of the light exiting is relatively large. In one embodiment, the second surface 112 of the contact lens 11 has a light collecting structure 112b corresponding to the light emitting element 121 of the annular lighting module 12. The concentrating structure 112b can converge a large angle direct illumination source through the pupil of the eyeball 20, thereby improving illumination efficiency. For example, the concentrating structure 112b can be a convex surface. It should be noted that the concentrating structure 112b may also be integrated with the illuminating element 121. In other words, the light emitting element 121 can be a light emitting diode package including a secondary optical structure.

依據上述結構，本發明之接觸式眼底鏡可以達到非常緊湊的結構設計，因此，於一實施例中，本發明之接觸式眼底鏡更包含一外殼，其外型易於以手持握，例如為一槍型。將接觸透鏡11、環形照明模組12、成像透鏡組13以及影像擷取模組14整合於外殼中，即可使本發明接觸式眼底鏡成為一手持式裝置。According to the above structure, the contact type ophthalmoscope of the present invention can achieve a very compact structural design. Therefore, in an embodiment, the contact type ophthalmoscope of the present invention further comprises a casing, which is easy to hold by hand, for example, Gun type. By integrating the contact lens 11, the annular illumination module 12, the imaging lens group 13, and the image capturing module 14 into the outer casing, the contact type ophthalmoscope of the present invention can be made into a hand-held device.

於一實施例中，本發明之接觸式眼底鏡更包含一顯示模組15，其用以顯示影像擷取模組14所擷取之影像。本發明所屬技術領域中具有通常知識者可以理解，本發明之接觸式眼底鏡可包含具有運算功能之處理單元，例如整合於影像擷取模組14中或彼此分離設置。處理單元可用以處理影像擷取模組14所擷取的影像並將影像顯示於顯示模組15。舉例而言，處理單元可對影像擷取模組14所擷取的影像進行影像處理，例如去除雜訊、調整對比或亮度等，以獲得較佳之影像品質。處理單元之功能為本發明所屬技術領域中具有通常知識者所熟知，故省略其詳細說明。In one embodiment, the contact type ophthalmoscope of the present invention further includes a display module 15 for displaying an image captured by the image capturing module 14. It will be understood by those skilled in the art that the contact type ophthalmoscope of the present invention may include a processing unit having an arithmetic function, for example, integrated in the image capturing module 14 or disposed separately from each other. The processing unit can process the image captured by the image capturing module 14 and display the image on the display module 15. For example, the processing unit can perform image processing on the image captured by the image capturing module 14, for example, removing noise, adjusting contrast or brightness, etc., to obtain better image quality. The functions of the processing unit are well known to those of ordinary skill in the art to which the present invention pertains, and a detailed description thereof will be omitted.

於一實施例中，本發明之接觸式眼底鏡更包含一焦距調整模組16。焦距調整模組16可利用機械方式或電子方式驅動影像擷取模組14沿成像透鏡組之一光軸OA線性移動，如圖1之箭頭A所示，以調整適當之焦距。焦距調整模組16是線性移動影像擷取模組14，換言之，成像透鏡組13的背焦可以隨意調整，因此，成像透鏡組13無需其它調整焦距的機構，尤其是非線性補償之凸輪環(cam ring)設計，是故成像透鏡組13之設計可加以簡化，並允許較大之機構公差而降低製造困難度及製造成本。可以理解的是，於一實施例中，焦距調整模組亦可驅動第二透鏡群組132以及第三透鏡群組133至少其中之一沿成像透鏡組之光軸OA移動，以調整適當之焦距。In one embodiment, the contact type ophthalmoscope of the present invention further includes a focus adjustment module 16. The focus adjustment module 16 can mechanically or electronically drive the image capture module 14 to move linearly along the optical axis OA of the imaging lens assembly, as indicated by the arrow A of FIG. 1, to adjust the appropriate focal length. The focus adjustment module 16 is a linear moving image capturing module 14, in other words, the back focus of the imaging lens group 13 can be adjusted at will, so that the imaging lens group 13 does not need other mechanisms for adjusting the focal length, especially the nonlinearly compensated cam ring (cam The ring design is such that the design of the imaging lens assembly 13 can be simplified and allows for greater mechanical tolerances and reduced manufacturing difficulties and manufacturing costs. It can be understood that, in an embodiment, the focus adjustment module can also drive at least one of the second lens group 132 and the third lens group 133 to move along the optical axis OA of the imaging lens group to adjust an appropriate focal length. .

於一實施例中，本發明之接觸式眼底鏡更包含一連接埠17，其用以與一外部電子裝置(未圖示)物理性連接。本發明之接觸式眼底鏡可經由連接埠17將影像擷取模組14所擷取之影像傳送至外部電子裝置。舉例而言，連接埠17可為一通用序列匯排流(Universal Serial Bus，USB)。In one embodiment, the contact ophthalmoscope of the present invention further includes a port 17 for physically connecting to an external electronic device (not shown). The contact type ophthalmoscope of the present invention can transmit the image captured by the image capturing module 14 to the external electronic device via the connection port 17. For example, the port 17 can be a universal serial bus (USB).

綜合上述，本發明之接觸式眼底鏡，其是將偏離成像系統光軸之環形光源儘可能貼近瞳孔，而可提供較大之眼底照明範圍且其結構緊湊。此外，離軸之環形照明未與成像系統共用透鏡，因此可避免透鏡反射之雜散光。In summary, the contact type ophthalmoscope of the present invention is such that the annular light source that is offset from the optical axis of the imaging system is as close as possible to the pupil, and provides a larger fundus illumination range and is compact in structure. In addition, the off-axis ring illumination does not share the lens with the imaging system, thus avoiding stray light reflected by the lens.

以上所述之實施例僅是為說明本發明之技術思想及特點，其目的在使熟習此項技藝之人士能夠瞭解本發明之內容並據以實施，當不能以之限定本發明之專利範圍，即大凡依本發明所揭示之精神所作之均等變化或修飾，仍應涵蓋在本發明之專利範圍內。The embodiments described above are only intended to illustrate the technical idea and the features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention. That is, the equivalent variations or modifications made by the spirit of the present invention should still be included in the scope of the present invention.

11‧‧‧接觸透鏡
111‧‧‧第一表面
112‧‧‧第二表面
112a‧‧‧凸面
112b‧‧‧聚光結構
412‧‧‧環形照明模組
121‧‧‧發光元件
121a‧‧‧第一發光二極體
121b‧‧‧第二發光二極體
122‧‧‧中空部
13‧‧‧成像透鏡組
131‧‧‧第一透鏡群組
132‧‧‧第二透鏡群組
133‧‧‧第三透鏡群組
14‧‧‧影像擷取模組
15‧‧‧顯示模組
16‧‧‧焦距調整模組
17‧‧‧連接埠
20‧‧‧眼球
OA‧‧‧光軸11‧‧‧Contact lens
111‧‧‧ first surface
112‧‧‧ second surface
112a‧‧ ‧ convex
112b‧‧‧ concentrating structure
412‧‧‧Circular lighting module
121‧‧‧Lighting elements
121a‧‧‧First LED
121b‧‧‧Second light-emitting diode
122‧‧‧ Hollow
13‧‧‧ imaging lens group
131‧‧‧First lens group
132‧‧‧Second lens group
133‧‧‧third lens group
14‧‧‧Image capture module
15‧‧‧Display module
16‧‧‧focal length adjustment module
17‧‧‧Connected
20‧‧‧ eyeballs
OA‧‧‧ optical axis

圖1為一示意圖，顯示本發明一實施例之接觸式眼底鏡。 圖2為一示意圖，顯示本發明一實施例之接觸式眼底鏡之接觸透鏡、環形照明模組以及第一透鏡群組。 圖3為一示意圖，顯示本發明一實施例之接觸式眼底鏡之環形照明模組。1 is a schematic view showing a contact type ophthalmoscope according to an embodiment of the present invention. 2 is a schematic view showing a contact lens, a ring illumination module, and a first lens group of a contact type ophthalmoscope according to an embodiment of the present invention. 3 is a schematic view showing a ring-shaped illumination module of a contact type ophthalmoscope according to an embodiment of the present invention.

11‧‧‧接觸透鏡 11‧‧‧Contact lens

111‧‧‧第一表面 111‧‧‧ first surface

112‧‧‧第二表面 112‧‧‧ second surface

112a‧‧‧凸面 112a‧‧ ‧ convex

112b‧‧‧聚光結構 112b‧‧‧ concentrating structure

12‧‧‧環形照明模組 12‧‧‧Circular lighting module

121‧‧‧發光元件 121‧‧‧Lighting elements

131‧‧‧第一透鏡群組 131‧‧‧First lens group

Claims (18)

一種接觸式眼底鏡，包含： 一接觸透鏡，其具有一第一表面以及一相對之第二表面，其中該第一表面為一凹面，用以接觸一眼球； 一環形照明模組，其貼近該接觸透鏡之該第二表面設置，並用以提供一直接照明光源通過該眼球之一瞳孔以照射該眼球之一基底； 一成像透鏡組，其設置於該環形照明模組中央之一中空部，用以會聚來自該眼球之該基底之一反射光；以及 一影像擷取模組，其用以擷取該成像透鏡組所會聚之該反射光以形成一影像。A contact type ophthalmoscope comprising: a contact lens having a first surface and an opposite second surface, wherein the first surface is a concave surface for contacting an eyeball; and an annular lighting module is adjacent to the The second surface of the contact lens is disposed to provide a direct illumination source through one of the eyeballs to illuminate one of the bases of the eyeball; an imaging lens set disposed in a hollow portion of the center of the annular illumination module Storing light from one of the substrates from the eyeball; and an image capturing module for capturing the reflected light concentrated by the imaging lens group to form an image. 如請求項1所述之接觸式眼底鏡，其中該環形照明模組之該中空部之內徑介於6mm至10mm。The contact type ophthalmoscope according to claim 1, wherein the hollow portion of the annular illumination module has an inner diameter of 6 mm to 10 mm. 如請求項1所述之接觸式眼底鏡，其中該環形照明模組包含多個呈環形對稱排列之發光元件或一環形發光元件。The contact type ophthalmoscope according to claim 1, wherein the annular illumination module comprises a plurality of light-emitting elements or a ring-shaped light-emitting element arranged in a ring symmetry. 如請求項1所述之接觸式眼底鏡，其中該環形照明模組包含多個第一發光二極體以及多個第二發光二極體，其中該多個第一發光二極體以及該多個第二發光二極體分別呈環形對稱排列，且該第一發光二極體以及該第二發光二極體所產生之該直接照明光源之中心波長相異。The contact-type ophthalmoscope according to claim 1, wherein the ring-shaped illumination module comprises a plurality of first light-emitting diodes and a plurality of second light-emitting diodes, wherein the plurality of first light-emitting diodes and the plurality of The second light-emitting diodes are respectively arranged in a circular symmetry, and the center wavelengths of the direct illumination light sources generated by the first light-emitting diodes and the second light-emitting diodes are different. 如請求項1所述之接觸式眼底鏡，其中該環形照明模組包含多個呈環形對稱排列之發光二極體，且該發光二極體為簡易封裝結構。The contact-type ophthalmoscope according to claim 1, wherein the annular illumination module comprises a plurality of light-emitting diodes arranged in a ring symmetry, and the light-emitting diode is a simple package structure. 如請求項1所述之接觸式眼底鏡，其中該環形照明模組包含多個呈環形對稱排列之發光二極體，且該發光二極體之封裝結構包含二次光學結構。The contact-type ophthalmoscope according to claim 1, wherein the annular illumination module comprises a plurality of light-emitting diodes arranged in a ring symmetry, and the package structure of the light-emitting diode comprises a secondary optical structure. 如請求項1所述之接觸式眼底鏡，其中對應該環形照明模組之該接觸透鏡之該第二表面具有一聚光結構，其用以會聚該直接照明光源通過該眼球之該瞳孔。The contact type ophthalmoscope according to claim 1, wherein the second surface of the contact lens corresponding to the annular illumination module has a light collecting structure for collecting the direct illumination light source through the pupil of the eyeball. 如請求項1所述之接觸式眼底鏡，其中該接觸透鏡之該第二表面具有對應於該成像透鏡組之一凸面。A contact ophthalmoscope according to claim 1, wherein the second surface of the contact lens has a convex surface corresponding to one of the imaging lens groups. 如請求項1所述之接觸式眼底鏡，其中該接觸透鏡之材質為一高分子聚合物材料。The contact type ophthalmoscope according to claim 1, wherein the contact lens is made of a high molecular polymer material. 如請求項1所述之接觸式眼底鏡，其中該接觸透鏡之材質為一具有生物相容性之軟性高分子聚合物材料。The contact type ophthalmoscope according to claim 1, wherein the contact lens is made of a biocompatible soft polymer material. 如請求項1所述之接觸式眼底鏡，其中該成像透鏡組包含自該眼球側至該影像擷取模組側依序配置之一第一透鏡群組、一第二透鏡群組以及一第三透鏡群組，其中該第一透鏡群組會聚該反射光，以在該第一透鏡群組以及該第二透鏡群組之間形成一中間像。The contact lens according to claim 1, wherein the imaging lens group comprises a first lens group, a second lens group and a first order from the eyeball side to the image capturing module side. a three lens group, wherein the first lens group converges the reflected light to form an intermediate image between the first lens group and the second lens group. 如請求項11所述之接觸式眼底鏡，其中該第二透鏡群組以及該第三透鏡群組至少其中之一是以可相對於該第一透鏡群組移動的方式配置。The contact ophthalmoscope of claim 11, wherein at least one of the second lens group and the third lens group is configured to be movable relative to the first lens group. 如請求項11所述之接觸式眼底鏡，其中該第二透鏡群組包含至少二個非球面透鏡。The contact ophthalmoscope of claim 11, wherein the second lens group comprises at least two aspherical lenses. 如請求項11所述之接觸式眼底鏡，其中該第三透鏡群組包含至少二組雙膠合透鏡，或一組雙膠合透鏡以及一組三膠合透鏡。The contact ophthalmoscope of claim 11, wherein the third lens group comprises at least two sets of double cemented lenses, or a set of double cemented lenses and a set of triplet lenses. 如請求項1所述之接觸式眼底鏡，更包含： 一顯示模組，其用以顯示該影像擷取模組所擷取之該影像。The contact type ophthalmoscope according to claim 1, further comprising: a display module for displaying the image captured by the image capturing module. 如請求項1所述之接觸式眼底鏡，更包含： 一焦距調整模組，其用以驅動該影像擷取模組或該成像透鏡組中至少之一透鏡組沿該成像透鏡組之一光軸線性移動。The contact type ophthalmoscope according to claim 1, further comprising: a focus adjustment module for driving at least one of the image capturing module or the lens group along the optical lens group Axis movement. 如請求項1所述之接觸式眼底鏡，更包含： 一連接埠，其用以與一外部電子裝置物理性連接，以輸出該影像擷取模組所擷取之該影像至該外部電子裝置。The contact type ophthalmoscope according to claim 1, further comprising: a connection port for physically connecting with an external electronic device to output the image captured by the image capture module to the external electronic device . 如請求項1所述之接觸式眼底鏡，更包含： 一外殼，其外型易於以手持握，其中該接觸透鏡、該環形照明模組、該成像透鏡組以及該影像擷取模組整合於該外殼中，以使該接觸式眼底鏡成為一手持式裝置。The contact type ophthalmoscope according to claim 1, further comprising: a housing that is easy to hold by hand, wherein the contact lens, the ring illumination module, the imaging lens group, and the image capturing module are integrated The housing is such that the contact ophthalmoscope becomes a hand-held device.
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